植物基复配沥青混合料的蠕变性能  

Preparation of bio-binder compound modified asphalt HMA creep property

作　　者：蒋洪涛[1] 朱德武 孙春阳 刘树堂[1] JIANG Hong-tao1 , ZHU De-wu2 , SUN Chun-yang1 , LIU Shu-tang1(1. School of Civil Engineering, Shandong University, Jinan 250061, China 2.NO.2 Department of Weifang Road Bridge Engineering Company, Weifang 261031, Chin)

机构地区：[1]山东大学土建与水利学院,山东济南250061 [2]潍坊市路桥工程建设二处,山东潍坊261031

出　　处：《长沙理工大学学报（自然科学版）》2018年第1期36-40,共5页Journal of Changsha University of Science and Technology:Natural Science

基　　金：山东省自然科学基金资助项目(ZR2013EEM028);山东省重点研发计划项目(2016GSF11601)

摘　　要：为研究植物基复配沥青混合料的流变特性,以进一步考察复配沥青混合料的高低温路用性能,在对基质沥青与植物沥青进行基本性能试验、并确定了两者适宜配合比例得到复配沥青的基础上,采用AC-13级配类型,分别进行了基质沥青与复配沥青混合料的高低温弯曲蠕变试验。基于Burgers模型,以塑性变形、劲度模量S以及蠕变速率m和m/S值及耗散能比等参数,分别评价了混合料的高、低温性能。研究结果表明,植物沥青较70~#沥青温度敏感性大;复配沥青中植物沥青的适宜掺量为70~#沥青质量的10%;复配沥青混合料的高温性能较70~#沥青混合料略差,但均满足规范要求,其低温性能及应力松弛性能亦略次于70~#沥青混合料。In order to research the rheological property of the bio-binder modified asphalt HMA, to further investigate the road performance of the compound modified asphalt HMA of high and low temperature, the basic performance of matrix asphalt and bio-binder is tested, and the optimum content of bio-binder in bio-binder modified asphalt is determinded; high and low temperature bending creep test of the compound modified asphalt and 70^# asphalt AC-13 HMA is carried out. High and low temperature performance of compound modified asphalt HMA byplastic deformation, S, m, m/S value and energy dissipation ratio and other parameters based on the Burgers model are evaluated. The results show that the bio-binder is more temperature sensitive than the matrix asphalt,the bio-binder＇s optimum content in the compound modified asphalt is 10% of the matrix asphalt,the high temperature property of the compound modified asphalt HMA is worse than the matrix asphalt HMA, but fulfil the requirements of specification,its low temperature property and stress relaxation properties are also worse than the matrix asphalt HMA.

关 键 词：植物沥青 复配沥青 沥青混合料 弯曲蠕变 流变性能 BURGERS模型 m/S值 

分 类 号：U416.217[交通运输工程—道路与铁道工程]